The reactions of (diethyldithiocarbamato)halogenotellurium(II) with thiourea, benzimidazole-2-thiol, halides (Cl^–, Br^–, I^–) and 1,10-phenanthroline (phen) have been studied. The products were principally characterized by elemental analyses, IR and ¹H NMR spectroscopies. Novel anionic (diethyldithiocarbamato)dihalogenotellurate(II) complexes resulted from the reactions of Te(S₂CNEt₂)X (X = Br or I) with NEt₄X (X = Br or I) and phen. The crystal structures of the complexes [NEt₄][Te(S₂CNEt₂)I₂], [H(phen)₂][Te(S₂CNEt₂)I₂] and [H(phen)₂][Te(S₂CNEt₂)Br₂] have been determined. In the anions tellurium is co-ordinated to two sulfur atoms of the dithiocarbamate in an almost isobidentate manner and to two halides in an overall planar trapezoidal geometry. In [NEt₄][Te(S₂CNEt₂)I₂] the two iodides are almost equidistant to tellurium with distances of 3.079(1) and 3.072(1)Å, whereas in [H(phen)₂][Te(S₂CNEt₂)I₂] the two Te–I distances are 3.151(1) and 3.038(1)Å and in [H(phen)₂][Te(S₂CNEt₂)Br₂] the two Te–Br distances are 2.911(1) and 2.986(1)Å. In [H(phen)₂]⁺ the proton is bound to one of the nitrogen atoms of a phenanthroline group and the two phen groups are held together by three hydrogen bonds, of which two are of the interesting type C–H ⋯ N.